C16H18Cl2N2O4
373.2 g/mol
Agrochemical
Mefenpyr-diethyl
CAS135590-91-9
Category
Agrochemical
Compound Class
Ester
Primary Use
Herbicide safener
Mefenpyr-diethyl is a herbicide safener used to protect crops from the phytotoxic effects of certain herbicides. It is a pyrazole derivative containing ester functional groups and a dichlorophenyl ring, with a molecular weight of approximately 372 g/mol and moderate lipophilicity.
Herbicide safener in agrochemical formulations
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Reading
Safety Reference
H411Toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Mefenpyr-diethyl (CAS 135590-91-9) is 2933.19.
HS code (international, 6-digit)
2933.19
EU CN code (8-digit)
2933 19 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
diethyl 1-(2,4-dichlorophenyl)-5-methyl-4H-pyrazole-3,5-dicarboxylate
InChIKey
OPGCOAPTHCZZIW-UHFFFAOYSA-N
SMILES
CCOC(=O)C1=NN(C(C1)(C)C(=O)OCC)C2=C(C=C(C=C2)Cl)Cl
Synonyms (18)
- 1-(3,4-Dic
- Mefenpyr-diethyl
- Mefenpyr-diethyl (Standard)
- Mefenpyr-diethyl, PESTANAL(R)
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